The Doctor makes a big deal out of saying that the sonic screwdriver isn’t a weapon, but that doesn’t keep him from using it to get into a whole lot of mischief. It would take a whole post to list all the things that a sonic screwdriver can accomplish, but the thing it does best is look cool! Everyone knows that the best sonic screwdrivers (like the best light sabers) are the ones you make yourself, so here’s our attempt to put one together the cheap and easy way.